Date: Fri, 2 Jan 2004 18:02:26 -0800 (PST) From: David Xu <davidxu@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/alpha/alpha machdep.c src/sys/amd64/amd64 machdep.c src/sys/amd64/ia32 ia32_signal.c src/sys/i386/i386 machdep.c src/sys/i386/linux linux_sysvec.c src/sys/ia64/ia64... Message-ID: <200401030202.i0322QIo068547@repoman.freebsd.org>
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davidxu 2004/01/02 18:02:26 PST
FreeBSD src repository
Modified files:
sys/alpha/alpha machdep.c
sys/amd64/amd64 machdep.c
sys/amd64/ia32 ia32_signal.c
sys/i386/i386 machdep.c
sys/i386/linux linux_sysvec.c
sys/ia64/ia64 machdep.c
sys/kern kern_fork.c kern_sig.c
sys/pc98/i386 machdep.c
sys/powerpc/powerpc machdep.c
sys/sparc64/sparc64 machdep.c
sys/sys proc.h
Log:
Make sigaltstack as per-threaded, because per-process sigaltstack state
is useless for threaded programs, multiple threads can not share same
stack.
The alternative signal stack is private for thread, no lock is needed,
the orignal P_ALTSTACK is now moved into td_pflags and renamed to
TDP_ALTSTACK.
For single thread or Linux clone() based threaded program, there is no
semantic changed, because those programs only have one kernel thread
in every process.
Reviewed by: deischen, dfr
Revision Changes Path
1.216 +22 -22 src/sys/alpha/alpha/machdep.c
1.602 +8 -8 src/sys/amd64/amd64/machdep.c
1.8 +12 -12 src/sys/amd64/ia32/ia32_signal.c
1.585 +22 -22 src/sys/i386/i386/machdep.c
1.129 +9 -9 src/sys/i386/linux/linux_sysvec.c
1.175 +8 -8 src/sys/ia64/ia64/machdep.c
1.209 +4 -1 src/sys/kern/kern_fork.c
1.264 +28 -37 src/sys/kern/kern_sig.c
1.332 +22 -22 src/sys/pc98/i386/machdep.c
1.65 +5 -5 src/sys/powerpc/powerpc/machdep.c
1.106 +5 -5 src/sys/sparc64/sparc64/machdep.c
1.363 +3 -3 src/sys/sys/proc.h
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